Here is our stats from this year.

11 - parings
5 - clutches laid
5 - ovulations (as of today)
13 - slugs
4 - infertile eggs
1 - dead embryo (day 20 or so)
21 - good eggs
0 - dead fully developed hatchlings

So all in all not a great year. But I'm definitely not complaining. Our last two clutches were pretty nice.